From d31a758c9c4a6ef86f2780a1bb3c9774aeedc00f Mon Sep 17 00:00:00 2001
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Date: Wed, 23 Sep 2026 19:56:26 +0800
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宿主侧把拒单收成结构化载荷，界面不再解析任何文案前缀。
- `DirectTurnError` 及其嵌套枚举补 `Serialize + TS`，导出到 `chat/generated/`
- 新增 `DirectTurnRejection`（结构化变体 + `Display` 生成的唯一一份文案），命令返回类型改为它
- `EnvironmentNotReady` 补 `environment-not-ready` 失败分类，避免回合失败被写成 `model-failed`
- `TurnAlreadyRunning` 去掉机器前缀，两条文案按身份是否相同分岔
- 删掉「按文案前缀判定」的协议约定与 `is_turn_failure`，通道改由**发生位置**决定
- 兜底终止路径改走 `complete_direct_thread_turn`：写终态的同时解除占用，不再只裸追加事件

前端按 `error.type` 分流，删掉三个按文案判断的旧函数。
- 新增 `readDirectTurnRejection` / `directTurnRejectionNotice` / `directTurnRejectionNoticeMessageId`
- 认得的参数 / 前置条件类（空内容、并发、参数非法、工程根等）写成与用户消息同级的提示，
  不占状态行、不写运行错误、不上报
- 认不得的宿主 / 环境事实与其它非结构化错误原样抛出，走既有捕获链路（上报 + 横幅）
- `chat_with_game_creator_direct_codex` 的 catch 从此只剩「拒单」一种输入

测试与绑定同步更新：appSurface 两条用例按新语义重写，`userItemId` / 终态时刻的注释跟着改。
---
 .../src/agent/codex_app_server/mod.rs         |  4 +-
 .../src-tauri/src/agent/direct_runtime/mod.rs | 37 +++++---
 .../src/agent/direct_runtime/user_input.rs    |  4 +-
 .../src-tauri/src/agent/direct_turn_error.rs  | 89 ++++++++++++++-----
 .../useDirectProjectChatController.ts         | 66 +++++++-------
 .../conversation/directCodexConversation.ts   | 68 +++++++++-----
 .../chat/generated/DirectCodexFailureStage.ts | 12 +++
 .../chat/generated/DirectCodexNativeKind.ts   | 24 +++++
 .../chat/generated/DirectModelCallKind.ts     | 24 +++++
 .../chat/generated/DirectThreadEvent.ts       |  8 +-
 .../chat/generated/DirectTurnDeadline.ts      |  8 ++
 .../chat/generated/DirectTurnError.ts         | 30 +++++++
 .../chat/generated/DirectTurnFailure.ts       |  2 +-
 .../chat/generated/DirectTurnRejection.ts     | 20 +++++
 .../tests/appSurface/chat-composer.suite.ts   | 76 +++++++---------
 .../appSurface/project-conversation.suite.ts  | 58 ++++++++----
 16 files changed, 374 insertions(+), 156 deletions(-)
 create mode 100644 apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectCodexFailureStage.ts
 create mode 100644 apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectCodexNativeKind.ts
 create mode 100644 apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectModelCallKind.ts
 create mode 100644 apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectTurnDeadline.ts
 create mode 100644 apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectTurnError.ts
 create mode 100644 apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectTurnRejection.ts

diff --git a/apps/ai-game-creator-shell/src-tauri/src/agent/codex_app_server/mod.rs b/apps/ai-game-creator-shell/src-tauri/src/agent/codex_app_server/mod.rs
index a07ca3f43..e2dbb6da2 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/agent/codex_app_server/mod.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/agent/codex_app_server/mod.rs
@@ -4382,7 +4382,9 @@ pub(crate) fn cancel_direct_codex_turn_at(
                 release_stale_direct_taonier_active_invocation(root, client_turn_id, reason)?;
             // 这一轮不会再有人替它发终态事件（执行进程已退出 / 从没进执行器），
             // 兜底补一条，否则前端的"最新回合是否在跑"会永远停在运行中。
-            append_direct_thread_event(
+            // 走 Thread Manager 的深层出口而不是裸 append：这是**为这一轮写的终态**，占用必须
+            // 同时解除，否则这个 thread 会一直被认为是"还有没收口的回合"，挡住后面的接单。
+            complete_direct_thread_turn(
                 &direct_thread_id_for_project(root),
                 direct_stale_cancel_turn_completed_event(&released),
             );
diff --git a/apps/ai-game-creator-shell/src-tauri/src/agent/direct_runtime/mod.rs b/apps/ai-game-creator-shell/src-tauri/src/agent/direct_runtime/mod.rs
index e4fb711ab..4ffebc77e 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/agent/direct_runtime/mod.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/agent/direct_runtime/mod.rs
@@ -2257,10 +2257,26 @@ pub(crate) fn direct_turn_error_boundary_text(
     client_turn_id: Option<&str>,
     failure: DirectTurnError,
 ) -> String {
+    direct_turn_rejection(root, client_turn_id, failure).message
+}
+
+/// 拒单边界：可留痕的调用级拒绝（宿主 / 环境事实）在这里补一份运行错误诊断，然后连同**结构化
+/// 变体**一起交给前端；其余只输出 [`DirectTurnError`] 的 `Display`。
+///
+/// GUI 命令与 CLI 边界共用这一份判据（CLI 只要文本，走上面的 `..._text`），禁止在各自边界再写一套。
+pub(crate) fn direct_turn_rejection(
+    root: &Path,
+    client_turn_id: Option<&str>,
+    failure: DirectTurnError,
+) -> DirectTurnRejection {
     if !failure.is_reportable() {
-        return failure.to_string();
+        return DirectTurnRejection::new(failure);
+    }
+    let message = record_direct_codex_failure(root, &failure, client_turn_id);
+    DirectTurnRejection {
+        error: failure,
+        message,
     }
-    record_direct_codex_failure(root, &failure, client_turn_id)
 }
 
 fn direct_taonier_art_generation_runtime_context(
@@ -5810,18 +5826,17 @@ mod tests {
             ),
             "{duplicate:?}"
         );
-        assert!(
-            duplicate
-                .to_string()
-                .starts_with(DIRECT_CODEX_TURN_ALREADY_RUNNING_PREFIX),
-            "{duplicate}"
+        // 界面按 typed 变体的两个身份字段分流，不解析文案：同一条身份 != 另一条身份。
+        assert_eq!(
+            duplicate.to_string(),
+            "同一轮消息仍在处理中，已拒绝并发复用同一 clientTurnId；请等它结束或点「终止」后再发送"
         );
         let different = DirectTaonierActiveInvocationGuard::enter(root.path(), "client-turn-0002")
             .expect_err("different turn cannot take over the project");
         assert!(
-            !different
+            different
                 .to_string()
-                .starts_with(DIRECT_CODEX_TURN_ALREADY_RUNNING_PREFIX),
+                .contains("已有另一条 Direct 客户端回合正在运行"),
             "{different}"
         );
         drop(first);
@@ -5856,9 +5871,9 @@ mod tests {
         let duplicate =
             DirectTaonierActiveInvocationGuard::enter(root.path(), "client-turn-read-2")
                 .expect_err("read-only probe must not take over the project");
-        assert!(!duplicate
+        assert!(duplicate
             .to_string()
-            .starts_with(DIRECT_CODEX_TURN_ALREADY_RUNNING_PREFIX));
+            .contains("已有另一条 Direct 客户端回合正在运行"));
 
         drop(first);
         assert_eq!(
diff --git a/apps/ai-game-creator-shell/src-tauri/src/agent/direct_runtime/user_input.rs b/apps/ai-game-creator-shell/src-tauri/src/agent/direct_runtime/user_input.rs
index d78abbb83..695d3186a 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/agent/direct_runtime/user_input.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/agent/direct_runtime/user_input.rs
@@ -45,7 +45,7 @@ pub(crate) async fn chat_with_game_creator_direct_codex(
     creation_type: Option<String>,
     client_turn_id: Option<String>,
     analytics_attempt_id: Option<String>,
-) -> Result<(), String> {
+) -> Result<(), DirectTurnRejection> {
     let root = Path::new(project_path.trim());
     let boundary_turn_id = client_turn_id.clone();
     chat_with_game_creator_direct_codex_typed(
@@ -56,7 +56,7 @@ pub(crate) async fn chat_with_game_creator_direct_codex(
         analytics_attempt_id,
     )
     .await
-    .map_err(|failure| direct_turn_error_boundary_text(root, boundary_turn_id.as_deref(), failure))
+    .map_err(|failure| direct_turn_rejection(root, boundary_turn_id.as_deref(), failure))
 }
 
 /// 命令主体：全程 typed。顺序固定，**每一步失败都还是拒单**：
diff --git a/apps/ai-game-creator-shell/src-tauri/src/agent/direct_turn_error.rs b/apps/ai-game-creator-shell/src-tauri/src/agent/direct_turn_error.rs
index 95363e73e..1afcb32ea 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/agent/direct_turn_error.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/agent/direct_turn_error.rs
@@ -27,6 +27,8 @@
 use std::fmt;
 
 use platform_llm::LlmError;
+use serde::Serialize;
+use ts_rs::TS;
 
 /// app-server 把"原生失败分类"写进原因文本时的结构化前缀。
 ///
@@ -34,15 +36,12 @@ use platform_llm::LlmError;
 /// 一段 ` detail=...` 的机器字段。宿主侧只允许在 [`direct_codex_native_kind`] 这一个地方读它。
 const DIRECT_CODEX_NATIVE_KIND_PREFIX: &str = "codex-app-server-error:";
 
-/// 并发复用同一 `clientTurnId` 时的稳定前缀。
-///
-/// 前端按前缀识别这一条（`directCodexConversation.ts` 里有一份同样的字面量）：它让界面把"同一轮
-/// 重复发送"与"另一轮正在跑"分开处理，所以它同时是文案约定和协议约定，改这里要一起改前端。
-pub(crate) const DIRECT_CODEX_TURN_ALREADY_RUNNING_PREFIX: &str =
-    "direct-codex-turn-already-running:";
-
 /// 失败发生在交付的哪一段。与错误分类正交：分类说明"怎么回事"，阶段说明"走到哪一步"。
-#[derive(Clone, Copy, Debug, PartialEq, Eq)]
+///
+/// 线上取值跟着拒单 / 失败载荷一起给前端（`art-preparation` 这类），所以也要导出。
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, TS)]
+#[serde(rename_all = "kebab-case")]
+#[ts(export, export_to = concat!(env!("CARGO_MANIFEST_DIR"), "/../src/view/project-development/chat/generated/"))]
 pub(crate) enum DirectCodexFailureStage {
     ArtPreparation,
     CodeGeneration,
@@ -62,7 +61,11 @@ impl DirectCodexFailureStage {
 }
 
 /// 宿主等不到模型回执时，撞的是哪一条上限。
-#[derive(Clone, Copy, Debug, PartialEq, Eq)]
+///
+/// 跟着拒单 / 失败载荷一起给前端，界面不靠文案区分这两条。
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, TS)]
+#[serde(rename_all = "kebab-case")]
+#[ts(export, export_to = concat!(env!("CARGO_MANIFEST_DIR"), "/../src/view/project-development/chat/generated/"))]
 pub(crate) enum DirectTurnDeadline {
     /// 空闲上限：一段时间没有新事件。
     ResponseIdle,
@@ -85,7 +88,15 @@ impl DirectTurnDeadline {
 /// 取值由 app-server 侧投影决定（`codex_app_server::game_creator_codex_app_server_failed_turn_error`），
 /// 宿主只在这里还原，不再逐条对文本做子串匹配。未知取值落 [`Self::Other`]——新增原生分类必须先
 /// 在这里登记，否则会被当成"可让模型再试一次"的普通失败。
-#[derive(Clone, Debug, PartialEq, Eq)]
+///
+/// 线上取值只给界面选语气用，前端不得拿它做流程分支。
+#[derive(Clone, Debug, PartialEq, Eq, Serialize, TS)]
+#[serde(
+    tag = "type",
+    rename_all = "kebab-case",
+    rename_all_fields = "camelCase"
+)]
+#[ts(export, export_to = concat!(env!("CARGO_MANIFEST_DIR"), "/../src/view/project-development/chat/generated/"))]
 pub(crate) enum DirectCodexNativeKind {
     ContextWindowExceeded,
     SessionBudgetExceeded,
@@ -196,12 +207,18 @@ impl DirectCodexNativeKind {
     }
 }
 
-/// 模型调用失败（app-server 一次 `turn` 的结果）的分类。
+/// 模型调用失败（app-server 一次 `turn` 的结果）的分类，跟着拒单 / 失败载荷一起给前端。
 ///
 /// 每个变体对应平台层 `LlmError` 的一个分支，于是 [`DirectTurnError::wire_kind`] 的取值与改造前
-/// 完全一致（载荷 `kind` 只影响界面语气）。`native` 字段是原因文本里带出来的原生分类：有它时
-/// 决策看原生分类，没有时看这个变体本身。
-#[derive(Clone, Debug, PartialEq, Eq)]
+/// 完全一致：事件的 `failure.kind` 就是这一份取值，界面按它选语气，不拿它做流程分支。
+/// `native` 字段是原因文本里带出来的原生分类：有它时决策看原生分类，没有时看这个变体本身。
+#[derive(Clone, Debug, PartialEq, Eq, Serialize, TS)]
+#[serde(
+    tag = "type",
+    rename_all = "camelCase",
+    rename_all_fields = "camelCase"
+)]
+#[ts(export, export_to = concat!(env!("CARGO_MANIFEST_DIR"), "/../src/view/project-development/chat/generated/"))]
 pub(crate) enum DirectModelCallKind {
     /// `LlmError::Timeout`。
     ResponseTimedOut { attempts: u32 },
@@ -331,7 +348,14 @@ impl DirectModelCallKind {
     }
 }
 
-#[derive(Clone, Debug, PartialEq, Eq)]
+/// 变体名就是线上的分流键（`type`）：前端只按它选通道，不解析任何文案。
+#[derive(Clone, Debug, PartialEq, Eq, Serialize, TS)]
+#[serde(
+    tag = "type",
+    rename_all = "camelCase",
+    rename_all_fields = "camelCase"
+)]
+#[ts(export, export_to = concat!(env!("CARGO_MANIFEST_DIR"), "/../src/view/project-development/chat/generated/"))]
 pub(crate) enum DirectTurnError {
     // ───────── 拒单：接单之前发生，这一轮没有开始 ─────────
     /// `clientTurnId` 没给：没有稳定回合身份，拒绝创建可计费身份。
@@ -386,6 +410,30 @@ pub(crate) enum DirectTurnError {
     TurnFailedUnclassified { detail: String },
 }
 
+/// 拒单载荷：命令边界交给前端的**结构化拒绝**。
+///
+/// 为什么不是只给一句话：界面要按变体分流——认得的"前置条件不满足 / 用户参数无效"给一条与用户
+/// 消息同级的提示且不上报，认不得的原样抛出交给既有捕获链路。文案只是给人看的最后一步，仍由
+/// `Display` 在这一处生成一次，前端不拼文案、不改写任何字段。
+#[derive(Clone, Debug, PartialEq, Eq, Serialize, TS)]
+#[serde(rename_all = "camelCase")]
+#[ts(export, export_to = concat!(env!("CARGO_MANIFEST_DIR"), "/../src/view/project-development/chat/generated/"))]
+pub(crate) struct DirectTurnRejection {
+    /// 结构化变体：界面按 `error.type` 分流，不解析文案。
+    pub(crate) error: DirectTurnError,
+    /// 可展示文案（`Display` 的唯一出口）。
+    pub(crate) message: String,
+}
+
+impl DirectTurnRejection {
+    pub(crate) fn new(error: DirectTurnError) -> Self {
+        Self {
+            message: error.to_string(),
+            error,
+        }
+    }
+}
+
 impl DirectTurnError {
     /// 命令边界要不要为这条**拒单**补一份运行错误诊断。
     ///
@@ -561,10 +609,11 @@ impl fmt::Display for DirectTurnError {
                 existing_invocation_id,
                 incoming_invocation_id,
             } => {
+                // 两条文案按身份是否相同分岔，但**不再有机器前缀**：界面按 `error.type` 与其
+                // 两个身份字段分流，不解析文案（前缀曾经是协议约定，现在只是噪声）。
                 if existing_invocation_id == incoming_invocation_id {
-                    write!(
-                        formatter,
-                        "{DIRECT_CODEX_TURN_ALREADY_RUNNING_PREFIX} 当前 Direct 客户端回合仍在运行，已拒绝并发复用同一 clientTurnId"
+                    formatter.write_str(
+                        "同一轮消息仍在处理中，已拒绝并发复用同一 clientTurnId；请等它结束或点「终止」后再发送",
                     )
                 } else {
                     write!(
@@ -965,9 +1014,7 @@ mod tests {
             existing_invocation_id: "turn-1".into(),
             incoming_invocation_id: "turn-1".into(),
         };
-        assert!(same
-            .to_string()
-            .starts_with("direct-codex-turn-already-running: "));
+        assert!(same.to_string().contains("同一轮消息仍在处理中"));
         let different = DirectTurnError::TurnAlreadyRunning {
             existing_invocation_id: "turn-1".into(),
             incoming_invocation_id: "turn-2".into(),
diff --git a/apps/ai-game-creator-shell/src/view/project-development/chat/controller/useDirectProjectChatController.ts b/apps/ai-game-creator-shell/src/view/project-development/chat/controller/useDirectProjectChatController.ts
index 2fb54cb81..851515762 100644
--- a/apps/ai-game-creator-shell/src/view/project-development/chat/controller/useDirectProjectChatController.ts
+++ b/apps/ai-game-creator-shell/src/view/project-development/chat/controller/useDirectProjectChatController.ts
@@ -35,9 +35,9 @@ import {
   directCodexConversationMessageId,
   directCodexPolicyRetryInput,
   type DirectProjectTurnInput,
-  isDirectCodexAnotherTurnRunningError,
-  isDirectCodexTurnAlreadyRunningError,
-  isDirectCodexTurnInterruptedError,
+  directTurnRejectionNotice,
+  directTurnRejectionNoticeMessageId,
+  readDirectTurnRejection,
 } from '../conversation/directCodexConversation';
 import { DIRECT_CODEX_SESSION_KEEPALIVE_MS } from '../conversation/directCodexSessionKeepalive';
 import {
@@ -577,39 +577,38 @@ export function useDirectProjectChatController({
         runAnalytics.settle();
       }
       // 清单刷新统一交给 startTurn 的 finally：成功与报错路径都覆盖，且只读一次。
-      // TODO(Direct 命令接单化，未实施)：下面这个 catch 现在兼职"接单被拒"与"回合失败"两种回执。
-      // 计划（`docs/adr/【ADR】DirectProject命令接单化-2026-09-23.md`）是让命令只负责接单：整轮结果
-      // 只由订阅事件的载荷回答，拒单则返回 typed 错误——届时这里只剩"拒单"，认得的前置 / 参数类按变体
-      // 给与用户消息同级的提示且不上报，认不得的错误原样抛出交给既有捕获链路，状态行改由 reducer 供数。
-      // invoke 拒绝驱动的认证重试已按该 ADR 删除（`directCodexSessionKeepalive.ts` 只保留会话保活）。
     } catch (error) {
-      if (
-        isDirectCodexTurnAlreadyRunningError(error) ||
-        isDirectCodexAnotherTurnRunningError(error)
-      ) {
-        if (projectPathRef.current === nextProjectPath) {
-          onRuntimeError(
-            '陶泥儿仍在处理上一条消息，可在输入盒点「终止」结束它，或等它结束后再发送。',
-          );
+      // 命令的拒单是**结构化的**：命令返回 `Ok` 只说明接单成立，所以这条 catch 从接单化之后
+      // 只剩"拒单"一种输入（整轮结果由 `turn.completed` 事件回答，不再回到这里）。
+      const rejection = readDirectTurnRejection(error);
+      if (rejection) {
+        const notice = directTurnRejectionNotice(rejection);
+        if (notice) {
+          // 认得的前置条件 / 参数类拒单：写成与用户消息同级的提示，不占状态行、不写运行错误、
+          // 也不上报（用户自己就能改，上报只会变成噪声）。
+          if (projectPathRef.current === nextProjectPath) {
+            onRuntimeError('');
+            appendLocalMessage({
+              role: 'assistant',
+              text: notice,
+              runtimeOwned: true,
+              messageId: directTurnRejectionNoticeMessageId(
+                directCodexConversationMessageId(input.clientTurnId, 'user'),
+              ),
+              updatedAt: Date.now(),
+            });
+          }
+          return;
         }
-        return;
       }
       if (projectPathRef.current !== nextProjectPath) return;
-      if (isDirectCodexTurnInterruptedError(error)) {
-        // 用户主动终止：不是失败，不写运行错误与诊断，只把回合标记成已终止。
-        onRuntimeError('');
-        setComposerNotice('已终止本次回合');
-        appendLocalMessage({
-          role: 'assistant',
-          text: '已终止本次回合。',
-          runtimeOwned: true,
-          messageId: `direct-codex:${input.clientTurnId}:failure`,
-          updatedAt: Date.now(),
-        });
-        return;
-      }
+      // 认不出的拒单（宿主 / 环境事实）与其它非结构化错误走同一条通道：上报 + 横幅。
       void captureAgentRuntimeError(error, DIRECT_CODEX_AGENT_ID);
-      const message = error instanceof Error ? error.message : String(error);
+      const message = rejection
+        ? rejection.message
+        : error instanceof Error
+          ? error.message
+          : String(error);
       // 不再展开诊断详情：文案里没有引用，前端也不去读那份文件。线索留在
       // `.agent/runtime/errors`、应用日志与错误上报池里，界面只显示这一句话。
       const visibleMessage = projectRuntimeVisibleError(
@@ -618,9 +617,8 @@ export function useDirectProjectChatController({
         true,
       );
       if (projectPathRef.current !== nextProjectPath) return;
-      // 聊天里的失败说明不再由这里写：宿主已经把脱敏后的原因放进了
-      // `turn.completed.failure`，reducer 会把它落成本轮最后一条条目（唯一来源）。这里只保留
-      // 运行错误横幅（含 `详情：` 那份长 detail）与诊断留痕，两条通道不再各写一份文案。
+      // 聊天里的失败说明不由这里写：宿主已经把它放进了 `turn.completed.failure`，reducer 会把它
+      // 落成本轮最后一条条目（唯一来源）。这里只保留运行错误横幅与诊断留痕。
       onRuntimeError(visibleMessage);
     }
   }
diff --git a/apps/ai-game-creator-shell/src/view/project-development/chat/conversation/directCodexConversation.ts b/apps/ai-game-creator-shell/src/view/project-development/chat/conversation/directCodexConversation.ts
index 54ed697f3..2d662afe9 100644
--- a/apps/ai-game-creator-shell/src/view/project-development/chat/conversation/directCodexConversation.ts
+++ b/apps/ai-game-creator-shell/src/view/project-development/chat/conversation/directCodexConversation.ts
@@ -1,14 +1,10 @@
 import type { ChatMessage } from '../../../../app/types';
 import type { HomeCreationType } from '../../../home';
 import type { DirectCodexUserItem } from '../generated/DirectCodexUserItem';
+import type { DirectTurnRejection } from '../generated/DirectTurnRejection';
 
 export const DIRECT_CODEX_AGENT_ID = 'direct-codex';
 export const DIRECT_CODEX_CONVERSATION_MESSAGE_ID_PREFIX = 'direct-codex:';
-const DIRECT_CODEX_TURN_ALREADY_RUNNING_ERROR_PREFIX =
-  'direct-codex-turn-already-running:';
-/** 与 Rust 侧 `DirectTaonierActiveInvocationGuard::enter` 的 else 分支文案保持一致。 */
-const DIRECT_CODEX_ANOTHER_TURN_RUNNING_ERROR_MARKER =
-  '当前项目已有另一条 Direct 客户端回合正在运行';
 
 /**
  * 一轮 DirectProject 回合的完整入参。
@@ -67,29 +63,57 @@ export function directCodexConversationMessageId(
   return `${DIRECT_CODEX_CONVERSATION_MESSAGE_ID_PREFIX}${turnId}:${role}`;
 }
 
-export function isDirectCodexTurnAlreadyRunningError(error: unknown) {
-  const message = error instanceof Error ? error.message : String(error);
-  return message
-    .trimStart()
-    .startsWith(DIRECT_CODEX_TURN_ALREADY_RUNNING_ERROR_PREFIX);
+/**
+ * 命令的**拒单**载荷（Rust 侧 `DirectTurnRejection`）：结构化变体 + 宿主生成的文案。
+ *
+ * `invoke` 拒绝时拿到的就是这份值（不是 `Error`）。这里只做一次形状读取，分流一律看
+ * `error.type`——文案是给人看的，不参与任何判断。
+ */
+export function readDirectTurnRejection(
+  error: unknown,
+): DirectTurnRejection | null {
+  if (!error || typeof error !== 'object') return null;
+  const candidate = error as { error?: unknown; message?: unknown };
+  const variant = candidate.error;
+  if (!variant || typeof variant !== 'object') return null;
+  const type = (variant as { type?: unknown }).type;
+  if (typeof type !== 'string' || !type) return null;
+  if (typeof candidate.message !== 'string') return null;
+  return candidate as DirectTurnRejection;
 }
 
 /**
- * 另一条 Direct 回合占着这个项目时的拒绝。它与上面那条同 clientTurnId 的拒绝分属不同
- * 错误分类（Rust 侧刻意不带前缀），但对界面是同一件事：本项目现在有一条我们没接管的
- * 回合在跑。所以这里单独判定，让它也走"接管它 + 告诉用户出口"的处理。
+ * 认得的拒单（前置条件不满足 / 用户参数无效）→ 与用户消息同级的提示文案；认不得的返回 `null`，
+ * 由调用方原样抛出交给既有捕获链路（上报 + 横幅）。
+ *
+ * 文案是宿主 `Display` 生成的**唯一一份**，界面原样显示：不套运行错误映射，也不在界面另写一份
+ * ——那一套会把"聊天内容不能为空"这类前置条件压成"执行失败，请稍后重试"。
+ *
+ * 名单只放"用户自己就能改、且不需要宿主诊断"的变体：`environmentNotReady` /
+ * `hostStateUnavailable` 这类是宿主 / 环境事实，必须走上报通道，所以不在这里。
  */
-export function isDirectCodexAnotherTurnRunningError(error: unknown) {
-  const message = error instanceof Error ? error.message : String(error);
-  return message.includes(DIRECT_CODEX_ANOTHER_TURN_RUNNING_ERROR_MARKER);
+export function directTurnRejectionNotice(
+  rejection: DirectTurnRejection,
+): string | null {
+  switch (rejection.error.type) {
+    case 'clientTurnIdMissing':
+    case 'clientTurnIdMalformed':
+    case 'turnAlreadyRunning':
+    case 'projectRootUnanchored':
+    case 'projectRootUnusable':
+    case 'permissionRejected':
+    case 'inputRejected':
+    case 'contentEmpty':
+      return rejection.message.trim();
+    default:
+      return null;
+  }
 }
 
 /**
- * 用户点了"终止"以后，正在 await 的回合命令会带着 app-server 的中断原因返回
- * （`Codex app-server turn 已中断`）。这类错误是用户主动取消，不是失败：界面要给
- * "已终止本次回合"而不是把中断当作异常写进运行错误与诊断。
+ * 拒绝提示在同一条用户消息里的展示身份：与失败说明（`:failure`）同一套派生规则但不同后缀，
+ * 两条通道永远不会合并成一条。
  */
-export function isDirectCodexTurnInterruptedError(error: unknown) {
-  const message = error instanceof Error ? error.message : String(error);
-  return message.includes('turn 已中断') || message.includes('已终止本次回合');
+export function directTurnRejectionNoticeMessageId(userItemId: string) {
+  return `${userItemId}:rejected`;
 }
diff --git a/apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectCodexFailureStage.ts b/apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectCodexFailureStage.ts
new file mode 100644
index 000000000..e9b8f2355
--- /dev/null
+++ b/apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectCodexFailureStage.ts
@@ -0,0 +1,12 @@
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+
+/**
+ * 失败发生在交付的哪一段。与错误分类正交：分类说明"怎么回事"，阶段说明"走到哪一步"。
+ *
+ * 线上取值跟着拒单 / 失败载荷一起给前端（`art-preparation` 这类），所以也要导出。
+ */
+export type DirectCodexFailureStage =
+  | 'art-preparation'
+  | 'code-generation'
+  | 'browser-validation'
+  | 'version-registration';
diff --git a/apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectCodexNativeKind.ts b/apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectCodexNativeKind.ts
new file mode 100644
index 000000000..1347200b1
--- /dev/null
+++ b/apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectCodexNativeKind.ts
@@ -0,0 +1,24 @@
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+
+/**
+ * Codex app-server 自报的原生失败分类（`turn.error.codexErrorInfo` 的归类结果）。
+ *
+ * 取值由 app-server 侧投影决定（`codex_app_server::game_creator_codex_app_server_failed_turn_error`），
+ * 宿主只在这里还原，不再逐条对文本做子串匹配。未知取值落 [`Self::Other`]——新增原生分类必须先
+ * 在这里登记，否则会被当成"可让模型再试一次"的普通失败。
+ *
+ * 线上取值只给界面选语气用，前端不得拿它做流程分支。
+ */
+export type DirectCodexNativeKind =
+  | { type: 'context-window-exceeded' }
+  | { type: 'session-budget-exceeded' }
+  | { type: 'usage-limit-exceeded' }
+  | { type: 'request-too-large' }
+  | { type: 'stream-required' }
+  | { type: 'cyber-policy' }
+  | { type: 'sandbox-error' }
+  | { type: 'thread-rollback-failed' }
+  | { type: 'bad-request' }
+  | { type: 'unauthorized' }
+  | { type: 'active-turn-not-steerable' }
+  | { type: 'other'; kind: string };
diff --git a/apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectModelCallKind.ts b/apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectModelCallKind.ts
new file mode 100644
index 000000000..b76ba3800
--- /dev/null
+++ b/apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectModelCallKind.ts
@@ -0,0 +1,24 @@
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+import type { DirectCodexNativeKind } from './DirectCodexNativeKind';
+
+/**
+ * 模型调用失败（app-server 一次 `turn` 的结果）的分类，跟着拒单 / 失败载荷一起给前端。
+ *
+ * 每个变体对应平台层 `LlmError` 的一个分支，于是 [`DirectTurnError::wire_kind`] 的取值与改造前
+ * 完全一致：事件的 `failure.kind` 就是这一份取值，界面按它选语气，不拿它做流程分支。
+ * `native` 字段是原因文本里带出来的原生分类：有它时决策看原生分类，没有时看这个变体本身。
+ */
+export type DirectModelCallKind =
+  | { type: 'responseTimedOut'; attempts: number }
+  | { type: 'connectionFailed'; attempts: number }
+  | { type: 'transportBroken' }
+  | { type: 'streamUnavailable' }
+  | { type: 'requestRejected'; native: DirectCodexNativeKind | null }
+  | {
+      type: 'upstreamFailed';
+      statusCode: number;
+      native: DirectCodexNativeKind | null;
+    }
+  | { type: 'paidCreditsInsufficient' }
+  | { type: 'emptyResponse' }
+  | { type: 'payloadInvalid'; native: DirectCodexNativeKind | null };
diff --git a/apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectThreadEvent.ts b/apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectThreadEvent.ts
index 293e2a6dc..da0136295 100644
--- a/apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectThreadEvent.ts
+++ b/apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectThreadEvent.ts
@@ -23,7 +23,8 @@ import type { DirectTurnFailure } from './DirectTurnFailure';
  * 不能在前端收到或重放时重新取当前时间。
  *
  * `turn.started` / `turn.completed` 额外带可选的 `userItemId`：本轮开口用户条目的 **canonical
- * itemId**（与同轮那条用户条目事件同源，由原生从已落盘条目上读取，不另造身份）。回合事件本身
+ * itemId**（与同轮那条用户条目事件同源，由宿主按 `clientTurnId` 现算，`direct-codex:{clientTurnId}:user`；
+ * **不读盘回填**——开始事件发生在用户条目落盘之前，落盘本身也可能失败）。回合事件本身
  * 不带回合身份，这个字段只用来把"这一轮的边界属于哪条用户消息"讲清楚：前端在只有生命周期锚点
  * + 历史切片、运行态一直为空时也能按身份认领开口条目，不必靠时间戳猜。缺失表示身份不可证明
  * （旧事件、没有开口用户条目、取消时拿不到 clientTurnId），此时前端不得补造。
@@ -32,7 +33,8 @@ export type DirectThreadEvent =
   | {
       type: 'turn.started';
       /**
-       * 本轮开始的阶段时间（毫秒）：宿主处理 `turn/start` 的毫秒钟。
+       * 本轮开始的阶段时间（毫秒）：**接单**那一刻的宿主毫秒钟（逻辑回合的起点，不是
+       * `turn/start` 的时刻）。
        */
       at?: number;
       /**
@@ -52,7 +54,7 @@ export type DirectThreadEvent =
        */
       failure?: DirectTurnFailure;
       /**
-       * 本轮终态的阶段时间（毫秒）：宿主处理终态的毫秒钟，或 `durationMs` + 高精度起点的派生值。
+       * 本轮终态的阶段时间（毫秒）：宿主写下终态的毫秒钟，或 `durationMs` + 高精度起点的派生值。
        */
       at?: number;
       /**
diff --git a/apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectTurnDeadline.ts b/apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectTurnDeadline.ts
new file mode 100644
index 000000000..b0ad58f44
--- /dev/null
+++ b/apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectTurnDeadline.ts
@@ -0,0 +1,8 @@
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+
+/**
+ * 宿主等不到模型回执时，撞的是哪一条上限。
+ *
+ * 跟着拒单 / 失败载荷一起给前端，界面不靠文案区分这两条。
+ */
+export type DirectTurnDeadline = 'response-idle' | 'turn-hard-limit';
diff --git a/apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectTurnError.ts b/apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectTurnError.ts
new file mode 100644
index 000000000..c14aec237
--- /dev/null
+++ b/apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectTurnError.ts
@@ -0,0 +1,30 @@
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+import type { DirectCodexFailureStage } from './DirectCodexFailureStage';
+import type { DirectModelCallKind } from './DirectModelCallKind';
+import type { DirectTurnDeadline } from './DirectTurnDeadline';
+
+/**
+ * 变体名就是线上的分流键（`type`）：前端只按它选通道，不解析任何文案。
+ */
+export type DirectTurnError =
+  | { type: 'clientTurnIdMissing' }
+  | { type: 'clientTurnIdMalformed'; minChars: number; maxChars: number }
+  | {
+      type: 'turnAlreadyRunning';
+      existingInvocationId: string;
+      incomingInvocationId: string;
+    }
+  | { type: 'projectRootUnanchored'; cause: string }
+  | { type: 'projectRootUnusable' }
+  | { type: 'permissionRejected'; policyDetail: string }
+  | { type: 'inputRejected'; detail: string }
+  | { type: 'contentEmpty' }
+  | { type: 'environmentNotReady'; detail: string }
+  | { type: 'hostStateUnavailable'; detail: string }
+  | { type: 'modelCallFailed'; kind: DirectModelCallKind; detail: string }
+  | { type: 'transportClosed'; diagnostic: string }
+  | { type: 'timedOut'; deadline: DirectTurnDeadline }
+  | { type: 'turnInterrupted'; detail: string }
+  | { type: 'reviewRequired'; detail: string }
+  | { type: 'turnFailed'; stage: DirectCodexFailureStage; detail: string }
+  | { type: 'turnFailedUnclassified'; detail: string };
diff --git a/apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectTurnFailure.ts b/apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectTurnFailure.ts
index 0ff2e80ae..4b7bde1c9 100644
--- a/apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectTurnFailure.ts
+++ b/apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectTurnFailure.ts
@@ -9,7 +9,7 @@
 export type DirectTurnFailure = {
   /**
    * 稳定失败分类：`timeout` / `model-failed` / `transport-failed` / `request-rejected` /
-   * `host-dropped`。
+   * `environment-not-ready` / `host-dropped`。
    */
   kind: string;
   /**
diff --git a/apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectTurnRejection.ts b/apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectTurnRejection.ts
new file mode 100644
index 000000000..ae3ce8aa9
--- /dev/null
+++ b/apps/ai-game-creator-shell/src/view/project-development/chat/generated/DirectTurnRejection.ts
@@ -0,0 +1,20 @@
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+import type { DirectTurnError } from './DirectTurnError';
+
+/**
+ * 拒单载荷：命令边界交给前端的**结构化拒绝**。
+ *
+ * 为什么不是只给一句话：界面要按变体分流——认得的"前置条件不满足 / 用户参数无效"给一条与用户
+ * 消息同级的提示且不上报，认不得的原样抛出交给既有捕获链路。文案只是给人看的最后一步，仍由
+ * `Display` 在这一处生成一次，前端不拼文案、不改写任何字段。
+ */
+export type DirectTurnRejection = {
+  /**
+   * 结构化变体：界面按 `error.type` 分流，不解析文案。
+   */
+  error: DirectTurnError;
+  /**
+   * 可展示文案（`Display` 的唯一出口）。
+   */
+  message: string;
+};
diff --git a/apps/ai-game-creator-shell/tests/appSurface/chat-composer.suite.ts b/apps/ai-game-creator-shell/tests/appSurface/chat-composer.suite.ts
index 840c8d2ff..de50995bb 100644
--- a/apps/ai-game-creator-shell/tests/appSurface/chat-composer.suite.ts
+++ b/apps/ai-game-creator-shell/tests/appSurface/chat-composer.suite.ts
@@ -32,7 +32,6 @@ import {
   renderLauncherProjectsAt,
   screen,
   setComposerText,
-  testAuthUser,
   vi,
   waitFor,
   within,
@@ -397,23 +396,15 @@ export function registerChatComposerControlTests() {
     expect(speechRecognitionErrorMessage('no-speech')).toContain('重试');
   });
 
-  it('settles only the final analytics attempt after a DirectProject authentication retry', async () => {
+  it('does not re-run the whole DirectProject turn when authentication fails', async () => {
+    // 登录态失效不再"刷新 + 重跑整轮"（重跑会重复落盘同一条用户消息）：它按普通回合结果呈现，
+    // 整轮只 invoke 一次、埋点只结算一次。
     const { invoke, surface } = await openDirectCodexSurface({
-      chat_with_game_creator_direct_codex: (() => {
-        let attempts = 0;
-        return () => {
-          if (++attempts === 1) throw new Error('authentication-required');
-          return '完成';
-        };
-      })(),
+      chat_with_game_creator_direct_codex: () => {
+        throw new Error('authentication-required');
+      },
     });
-    const refresh = vi
-      .spyOn(platformSession, 'requestPlatformSessionRefresh')
-      .mockResolvedValue({
-        status: 'refreshed',
-        user: testAuthUser,
-        generation: platformSession.currentPlatformSessionGeneration(),
-      });
+    const refresh = vi.spyOn(platformSession, 'requestPlatformSessionRefresh');
     try {
       const composer = within(surface).getByLabelText('陶泥儿对话内容');
       await submitDirectTurn(surface, composer, '继续制作');
@@ -424,23 +415,17 @@ export function registerChatComposerControlTests() {
           ),
         ).toHaveLength(1);
       });
-      const attempts = invoke.mock.calls
-        .filter(
-          ([command]) => command === 'chat_with_game_creator_direct_codex',
-        )
-        .map(([, args]) => args);
-      expect(attempts).toHaveLength(2);
-      expect(attempts[0]?.clientTurnId).toBe(attempts[1]?.clientTurnId);
-      expect(attempts[0]?.analyticsAttemptId).toEqual(expect.any(String));
-      expect(attempts[1]?.analyticsAttemptId).toEqual(expect.any(String));
-      expect(attempts[0]?.analyticsAttemptId).not.toBe(
-        attempts[1]?.analyticsAttemptId,
+      const attempts = invoke.mock.calls.filter(
+        ([command]) => command === 'chat_with_game_creator_direct_codex',
       );
-      expect(invoke).toHaveBeenCalledWith('settle_direct_run_analytics', {
-        attemptId: attempts[1]?.analyticsAttemptId,
-        discard: false,
+      expect(attempts).toHaveLength(1);
+      expect(refresh).not.toHaveBeenCalled();
+      // 认不出的拒单 / 非结构化错误仍走既有捕获链路：横幅给用户一句可读的话。
+      await waitFor(() => {
+        expect(
+          within(surface).getByText('陶泥儿智能创作 执行失败，请稍后重试'),
+        ).not.toBeNull();
       });
-      expect(refresh).toHaveBeenCalledTimes(1);
     } finally {
       refresh.mockRestore();
     }
@@ -722,18 +707,18 @@ export function registerChatComposerControlTests() {
   });
 
   it('terminates the running turn and returns the composer to the idle state', async () => {
-    const pending: Array<{
-      resolve: (value: string) => void;
-      reject: (error: Error) => void;
-    }> = [];
     const { invoke, path, surface, harness } = await openDirectCodexSurface({
-      chat_with_game_creator_direct_codex: () =>
-        new Promise<string>((resolve, reject) => {
-          // 回合真正开跑：生命周期事件由订阅下发，界面据此进入"可终止"。
-          harness.emitDirectThreadEvents({ type: 'turn.started' });
-          pending.push({ resolve, reject });
-        }),
-      cancel_direct_codex_turn: async () => undefined,
+      // 命令只接单：接单成立（开始事件已由 Thread Manager 下发）后它立刻返回，"这一轮还在跑"
+      // 由订阅事件回答——所以忙碌态与「终止」入口都不再依赖命令 promise 还悬着。
+      chat_with_game_creator_direct_codex: () => {
+        harness.emitDirectThreadEvents({ type: 'turn.started' });
+        return Promise.resolve(null);
+      },
+      cancel_direct_codex_turn: async () => ({
+        outcome: 'interrupted',
+        message: '已向正在运行的回合发出终止',
+        clientTurnId: 'direct-turn-cancel',
+      }),
     });
     const composer = within(surface).getByLabelText('陶泥儿对话内容');
     await submitDirectTurn(surface, composer, '做一个小游戏');
@@ -754,9 +739,8 @@ export function registerChatComposerControlTests() {
       });
     });
 
-    // app-server 的中断原因回到前端：不是失败，UI 必须回到可用态。
+    // 用户点「终止」的可读反馈走 composer 提示；这一轮怎么收场只由终态事件回答。
     act(() => {
-      pending[0]?.reject(new Error('Codex app-server turn 已中断'));
       harness.emitDirectThreadEvents({
         type: 'turn.completed',
         status: 'interrupted',
@@ -766,7 +750,9 @@ export function registerChatComposerControlTests() {
       const send = within(surface).getByRole('button', { name: '发送' });
       expect(send).toHaveProperty('disabled', false);
     });
-    expect(within(surface).getByText('已终止本次回合。')).not.toBeNull();
+    expect(
+      within(surface).getByText('已向正在运行的回合发出终止'),
+    ).not.toBeNull();
   });
 
   it('moves the reasoning effort control next to the model selector and persists only for later turns', async () => {
diff --git a/apps/ai-game-creator-shell/tests/appSurface/project-conversation.suite.ts b/apps/ai-game-creator-shell/tests/appSurface/project-conversation.suite.ts
index bc3191d9a..6b1864bbb 100644
--- a/apps/ai-game-creator-shell/tests/appSurface/project-conversation.suite.ts
+++ b/apps/ai-game-creator-shell/tests/appSurface/project-conversation.suite.ts
@@ -1,7 +1,8 @@
 import { directCodexUserItemFromContent } from '../../src/features/project-workspace/resourceReferences';
 import {
   directCodexPolicyRetryInput,
-  isDirectCodexTurnAlreadyRunningError,
+  directTurnRejectionNotice,
+  readDirectTurnRejection,
 } from '../../src/view/project-development/chat/conversation/directCodexConversation';
 import {
   createGameCreationAppManifest,
@@ -20,24 +21,49 @@ import {
 } from './harness';
 
 export function registerProjectConversationTests() {
-  it('filters only the stable same-turn in-progress rejection from terminal Direct Codex failures', () => {
+  it('splits structured rejections by variant and never by copy', () => {
+    // 拒单是**结构化**载荷：分流只看 `error.type`，文案不参与任何判断。
+    const concurrent = {
+      error: {
+        type: 'turnAlreadyRunning' as const,
+        existingInvocationId: 'turn-1',
+        incomingInvocationId: 'turn-1',
+      },
+      message: '同一轮消息仍在处理中',
+    };
+    expect(readDirectTurnRejection(concurrent)?.error.type).toBe(
+      'turnAlreadyRunning',
+    );
+    expect(directTurnRejectionNotice(concurrent)).toBe('同一轮消息仍在处理中');
+    // 认得的参数 / 前置条件类都给同级提示。
     expect(
-      isDirectCodexTurnAlreadyRunningError(
-        new Error(
-          'direct-codex-turn-already-running: 当前 Direct 客户端回合仍在运行',
-        ),
-      ),
-    ).toBe(true);
+      directTurnRejectionNotice({
+        error: { type: 'contentEmpty' },
+        message: '聊天内容不能为空',
+      }),
+    ).toBe('聊天内容不能为空');
+    // 宿主 / 环境事实不在这里认领：它们必须走上报通道（原样抛出）。
     expect(
-      isDirectCodexTurnAlreadyRunningError(
-        'codex-app-server-error:unauthorized',
-      ),
-    ).toBe(false);
+      directTurnRejectionNotice({
+        error: { type: 'environmentNotReady', detail: '连不上 app-server' },
+        message: '环境未就绪',
+      }),
+    ).toBeNull();
     expect(
-      isDirectCodexTurnAlreadyRunningError(
-        'direct-codex-turn-already-running 当前回合失败',
-      ),
-    ).toBe(false);
+      directTurnRejectionNotice({
+        error: { type: 'hostStateUnavailable', detail: '账本损坏' },
+        message: '宿主状态取不到',
+      }),
+    ).toBeNull();
+    // 不是这份结构（旧字符串、Error、裸对象）一律不认。
+    expect(
+      readDirectTurnRejection('codex-app-server-error:unauthorized'),
+    ).toBeNull();
+    expect(readDirectTurnRejection(new Error('boom'))).toBeNull();
+    expect(readDirectTurnRejection({ error: {}, message: 'x' })).toBeNull();
+    expect(
+      readDirectTurnRejection({ error: { type: 'contentEmpty' } }),
+    ).toBeNull();
   });
 
   it('carries the whole direct turn input, including @ references, into the policy-confirmation retry', () => {